Multilayered two-dimensional or tubular food casing or film
A multi-layer flake, food technology, applied in multi-layer casings, synthetic resin layered products, layered products, etc., can solve the problem of not providing moisture isolation shielding layer
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[0018] According to the invention, there is proposed here a multi-layer sheet-like or tubular food casing or food film for food packaging, such as shrinkage, produced in particular by a nozzle blow-draw method and biaxially extended in a triple-foaming process. Films, sealable films, wound films, etc., for the first time feature a laminate structure comprising at least seven layers counted from the outside to the inside.
[0019] From the outside, the first layer contains PET as a layer component, the second layer contains an adhesion promoter, the third layer contains an ionomer, the fourth layer contains an adhesion promoter, the fifth layer contains EVOH, and the sixth layer contains an adhesion promoter , the seventh layer from the outside - also the innermost layer - comprises a polyolefin, preferably polyethylene.
[0020] EVOH advantageously forms the desired oxygen barrier. Ionomers ensure the desired mechanical properties. Polyester fibers ensure excellent optical p...
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